Bit for carving-machines.



No. 788,873. -PATENTED MAY 2, 1905. S. F. ANDERSON.

BIT FOR GARVING MACHINES.

APPLICATION FILED FEB. 20, 1905.

No. 788,873. Patented May 2, 1905.

S PATEN SXVA'N F. ANDERSON, Old ROCKFORD, ILLINOIS, ASSIGNOR OF ONE-THIRD TO ELMER LUTZHOFF, OF ROCKFORD, ILLINOIS.

BIT FOR CAIRVlNG-IVIAGHINES.

SPECIFICATION forming part of Letters Patent No. 788,873, dated May 2, 1905.

Application filed February 20, 1905. Serial No. 2%.596.

310 (bl/4 w/wm' w Y/ (I/warn" furnished with an integral supporting-shank Be it known that I, SWAN F. ANDnRsoN, a A, extending from the center of the outside citizen of the United States of America, residof the bottom thereof and having a screwing at Rockford, in the county of Winnebago hole A tapped into the center of the inside of 5 and State of Illinois, have invented certain new such socketbottcm. 5

and useful Improvements in Bits for Carving- B is a tapering binding-plug the counter- Machines, of which the following is a speciiipart of but of less transverse diameter than cation. the cup-shaped socket A and terminating at My invention relates to bits or cutting-tools its apex B in a screw B", titted to enter the and holdersthereforof carving-machines. Its screw-hole A therein and provided with transobject is to provide a bit or tool holder and verse opposite tool-retaining lugs B and a interchangeable tools therefor having tangs driving-slot B". especially adapted to be quickly inserted into C D are cutting-tools furnished with semiand secured in or detached from such holder; cylindrical tapering tangs C D, correspond- 5 and it consists, essentially, of a combination ing in shape to the tapering annular recess a, of an inwardly-tapering cup-shaped socket formed by the inner wall of the socketA and furnished with an integral supporting-shank the binding-plugB, and having transverse opextending from the center of the outside of posite notches (J D in their edges to admit the bottom thereof and having a screw-hole and engage the lugs B on such binding-plugB.

2O tapped into the center of the inside of such Having fully described my invention, what 5 socket-bottom, a tapering binding-plug the I claim as new, and desire to secure by Letters counterpart of but of less transverse diameter Patent, is than the cup-shaped socket and terminating 1. In combination, an inwardly-tapering at its apex in a screw fitted to enter the screw cup-shaped socket, furnished with an integral 5 holetherein and provided with transverse opsupporting-shank extending from the center 7 posite tool-retaining lugs, and cutting-tools of the outside of the bottom thereof and havfurnished with semicylindrical tapering tangs ing a screw-hole tapped into the center of the corresponding in shape to the tapering annuinside of such socket-bottom, a tapering bindlar recess formed by the socket and bindinging-plug, the counterpart of but of less trans- 3 plug and having transverse opposite notches verse diameter than the cup-shaped socket and in their edges to admit and engage the lugs terminating, at its apex, in a screw fitted to on the binding-plug. enter the screw-hole therein and provided Referring to the accompanying drawings, with transverse opposite tool-retaining lugs which form a part of this specification, Figure and cutting-tools furnished with semicylin- 35 1 is a central vertical partial section of cutdrical tapering tangs, corresponding in shape ting-tools and their holder embodying my into the tapering annular recess, formed by the vention. Fig. 2 is a section at the dotted line socket and binding-plug, and having trans- 2 2 in Fig. 1 of parts there shown. Fig. 3 is verse opposite notches in their edges to admit a section at the dotted line 3 3 in Fig. 2 of and engage the lugs on the binding-plug.

4 parts there shown. Fig. 4: is an isometrieal 2. In combination. an inwardly-tapering 5 detail View of the cuttingtools and their cup-shaped socket A, furnished with an intebinding-plug shown in the preceding views. gral supporting-shank A and having a screw- Like letters of reference indicate correhole A tapped thereinto, a tapering bindingsponding parts throughout the several views. plug B terminating, at its apex B, in a screw 45 Ais an inwardly-taperingcup-shapedsocket B fitted to enter the screw-hole A therein 9 and provided with transverse opposite toolto this specification in the presence of two subretaining lugs B and cutting-tools C D fur- I scribing Witnesses.

nished with semicyiindrieal tapering tangs w 7 T 1 C D and having transverse opposite notches ANDERbON' 5 C D in their edges to admit the lugs B on \Vitnesses:

the binding-plugB,substantiallyas described. L. L. MORRISON,

In testimony whereoflhave signed mynarne I NELLIE E. ENNETT. 

